How do their growth rates compare?

LightPDF has a month-over-month growth rate of -15.3%; Smart Keys for Mac has 0%.

How does pricing compare?

LightPDF: Freemium. Freemium. A free plan covers basic PDF tools with a 10MB file cap; paid plans start around $5.99/month, with a yearly tier and a one-time lifetime option. AI features consume monthly credits that differ by plan. Smart Keys for Mac: Freemium. Freemium: the macOS app is offered for free download with optional paid tiers. The website does not publish a pricing page, so plan details and current prices should be confirmed in the app or on the download page.

What are alternatives to LightPDF and Smart Keys for Mac?

Other tools in related categories include ChatGPT, Claude, DeepL, QuillBot Paraphraser, PDFgear.

Head-to-Head Benchmark

LightPDF vs Smart Keys for Mac

LightPDF records 1,742,568 monthly visits with -15.3% month-over-month growth and Freemium pricing. Smart Keys for Mac records 0 monthly visits with 0% growth and Freemium pricing.

LightPDFFreemiumTraffic Leader

Free AI-powered PDF editor, converter and reader for every device

Monthly Visits

1.74M

MoM Velocity

-15.3%

Top Market

🇮🇳 India

View LightPDF Analysis

lightpdf.com

Smart Keys for MacFreemium

AI shortcuts for macOS that proofread, translate and rewrite on demand

Monthly Visits

0

MoM Velocity

0%

Top Market

🌐 Global

View Smart Keys for Mac Analysis smartkeys.so

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	LightPDF	Smart Keys for Mac
Official Domain	lightpdf.com	smartkeys.so
Pricing Model	Freemium	Freemium
Monthly Visits	1.74M (1,742,568)	0 (0)

Primary Market & Share	🇮🇳 India (24.9%)	🌐 Global (—)

Direct Visits / mo	442.07K	0

User Rating	4.2	4.3

Supported Platforms	Website	Website

LightPDF

Free AI-powered PDF editor, converter and reader for every device

AI document agent and chat

Upload a PDF and ask questions in natural language, follow up on details and see which passages the answers came from. A separate chat mode works with YouTube videos.

Layout-preserving translation

Translate whole documents, including scanned and image-based PDFs, into 20+ languages while keeping the original formatting and layout intact.

AI data extraction to spreadsheets

Convert invoices, receipts, bank statements and purchase orders into structured, editable Excel files automatically.

Full PDF editing and conversion suite

Edit text and images, OCR scanned pages, convert to and from Office formats, then merge, split, compress, watermark, sign and annotate.

Strengths & Pros

+Very broad toolkit that covers both everyday PDF chores and advanced AI document tasks
+Free tier is usable for light jobs, and the paid plans are cheaper than many competing PDF editors
+Layout-preserving translation and AI data extraction handle scanned documents that trip up simpler tools
+One subscription covers five platforms, including desktop and mobile apps

Frequently Asked Questions: LightPDF vs Smart Keys for Mac

LightPDF has 1,742,568 monthly visits, while Smart Keys for Mac has 0. Traffic estimates describe audience size, not product quality.

More Head-to-Head Matchups

ChatGPT vs LightPDF

6.05B visits/mo

ChatGPT vs Smart Keys for Mac

6.05B visits/mo

Claude vs LightPDF

1.26B visits/mo

Claude vs Smart Keys for Mac

1.25B visits/mo

DeepL vs LightPDF

96.85M visits/mo

DeepL vs Smart Keys for Mac

95.11M visits/mo

Best Alternatives to LightPDF & Smart Keys for Mac (12)

Limitations

–Free plan caps files at 10MB and adds watermarks on some outputs
–AI features run on a credit system, so heavy usage means top-ups or a higher tier
–Advanced AI operations like text editing or logo removal consume credits quickly

Smart Keys for Mac

AI shortcuts for macOS that proofread, translate and rewrite on demand

Global AI hotkeys

Trigger proofreading, grammar fixes and rewrites on selected text with a shortcut such as Option + S, without leaving your app.

Custom key creation

Build your own Smart Key from a single instruction word and let the AI handle the rest of the work.

Translate and summarise

Translate text into other languages or condense long passages with dedicated keys including a screen translator.

Code helpers

Optimise code, add or strip comments, solve TODOs and explain unfamiliar snippets from the same shortcut system.

Strengths & Pros

+Works system-wide on selected text, so it fits almost any macOS app
+Shortcut-driven design keeps hands on the keyboard and removes copy-paste detours
+Key list spans writing, translation, summarising and coding tasks
+Free download with optional paid tiers, and keys can be customised or removed

Limitations

–Requires granting accessibility-style permissions so the app can act on other apps' text

–No public pricing page, making plan comparison harder before downloading

–Some reviews note occasional laggy or off-target AI suggestions

01

ChatGPT

6B/mo

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

AI ChatbotFreemium+2.2%

02

Claude

1.3B/mo

SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

AI AssistantFreemium+23.8%

#2

03

DeepL

95.1M/mo

SpecialistEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.

AI TranslateFreemium63% direct

#3

04

QuillBot paraphrasing editor rewriting text with synonym highlight controls

QuillBot Paraphraser

36.6M/mo

Paraphrase, proofread and summarize text with an AI writing workspace

AI Writing AssistantsFreemium+2.3%

05

PDFgear

2.8M/mo

Offers a completely free PDF editing and AI assistant experience, but lacks some of LightPDF's cloud-native collaboration features.

AI PDFFree24% direct

PDFgear editor interface showing PDF text editing and AI chat panel

06

PDNob PDF Editor

2.4M/mo

Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms.

AI PDF EditorFreemium, Free Trial, Paid+1.2%

Screenshot of PDNob PDF Editor editing a PDF with the AI summary panel open

07

ProWritingAid

1.6M/mo

A storytelling toolkit that checks your grammar and coaches your craft

AI Writing AssistantsFreemium, Paid+17.6%

ProWritingAid editor showing grammar and style reports alongside a manuscript

08

OpenL Translate

1.5M/mo

AI translation for text, images, documents and speech in 100+ languages

AI TranslateFreemium, Subscription+8.8%

OpenL Translate pricing page listing Starter, Pro and Ultimate plans with credit and character limits

09

pdf.net

1.3M/mo

Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant.

AI SummarizerFreemium, Free14% direct

Screenshot of the pdf.net dashboard with numbered tools for editing, converting and signing PDF documents

10

UPDF AI

1.1M/mo

Provides a more polished cross-platform desktop PDF editing suite, but requires a paid upgrade for full AI features.

AI PDFFreemium, Free Trial, Paid19% direct

Screenshot of UPDF AI showing a summarised PDF beside the document and AI chat panel

11

ChatPDF

1M/mo

Offers a streamlined conversational interface for querying PDFs, but provides fewer document editing and conversion utilities.

AI PDFFreemium44% direct

Screenshot of ChatPDF with an uploaded research paper and a chat thread containing answers linked to source pages

12

Hemingway Editor

605.2K/mo

SpecialistWrite bolder, clearer prose with instant readability and grammar feedback

AI Writing AssistantsFree Trial, Paid, Free66% direct

Screenshot of Hemingway Editor Plus with highlighted passive voice and adverb suggestions in a draft

#1

Visit

ChatGPT

6B/mo+2.2%

Official

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

AI Chatbot73% direct

Freemium

Visit

Claude

1.3B/mo+23.8%

Official

SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

AI Assistant72% direct

Freemium

Visit

DeepL

95.1M/mo

Official

SpecialistEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.

AI Translate63% direct

Freemium

Visit

QuillBot Paraphraser

36.6M/mo+2.3%

Official

Paraphrase, proofread and summarize text with an AI writing workspace

AI Writing Assistants30% direct

Freemium

Visit

PDFgear

2.8M/mo

Offers a completely free PDF editing and AI assistant experience, but lacks some of LightPDF's cloud-native collaboration features.

AI PDF24% direct

Free

Visit

PDNob PDF Editor

2.4M/mo+1.2%

Official

Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms.

AI PDF Editor22% direct

Freemium, Free Trial, Paid

Visit

ProWritingAid

1.6M/mo+17.6%

A storytelling toolkit that checks your grammar and coaches your craft

AI Writing Assistants51% direct

Freemium, Paid

Visit

OpenL Translate

1.5M/mo+8.8%

AI translation for text, images, documents and speech in 100+ languages

AI Translate26% direct

Freemium, Subscription

Visit

pdf.net

1.3M/mo

Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant.

AI Summarizer14% direct

Freemium, Free

Visit

UPDF AI

1.1M/mo

Official

Provides a more polished cross-platform desktop PDF editing suite, but requires a paid upgrade for full AI features.

AI PDF19% direct

Freemium, Free Trial, Paid

Visit

ChatPDF

1M/mo

Official

Offers a streamlined conversational interface for querying PDFs, but provides fewer document editing and conversion utilities.

AI PDF44% direct

Freemium

Visit

Hemingway Editor

605.2K/mo

SpecialistWrite bolder, clearer prose with instant readability and grammar feedback

AI Writing Assistants66% direct

Free Trial, Paid, Free

LightPDF vs Smart Keys for Mac

Side-by-Side Traffic & Specification Matrix

LightPDF

Strengths & Pros

Frequently Asked Questions: LightPDF vs Smart Keys for Mac

How do LightPDF and Smart Keys for Mac compare in monthly traffic?

How do their growth rates compare?

How does pricing compare?

What are alternatives to LightPDF and Smart Keys for Mac?

More Head-to-Head Matchups

Best Alternatives to LightPDF & Smart Keys for Mac (12)

Limitations

Smart Keys for Mac

Strengths & Pros

Limitations